MacRae, M. CLASSROOM TEACHING SKILLS: A HANDBOOK and A WORKBOOK. (Authors: J. Cooper, J. Hansen, P. Martorella, G. Morine-Dershimer, D. Sadker, M. Sadker, S. Sokolove, R. Shostak, T. TenBrink, W. Weber). MJE / RSEM 1977, 12.